WO1991007468A1 - Procede d'amelioration de la viscosite et du debit de filtrage d'un mortier fin d'eau et d'argile - Google Patents

Procede d'amelioration de la viscosite et du debit de filtrage d'un mortier fin d'eau et d'argile Download PDF

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Publication number
WO1991007468A1
WO1991007468A1 PCT/US1990/005762 US9005762W WO9107468A1 WO 1991007468 A1 WO1991007468 A1 WO 1991007468A1 US 9005762 W US9005762 W US 9005762W WO 9107468 A1 WO9107468 A1 WO 9107468A1
Authority
WO
WIPO (PCT)
Prior art keywords
slurry
clay
latex
polyalkylene polyamine
additive
Prior art date
Application number
PCT/US1990/005762
Other languages
English (en)
Inventor
Alan P. Croft
Original Assignee
The Dow Chemical Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Dow Chemical Company filed Critical The Dow Chemical Company
Priority to BR909007812A priority Critical patent/BR9007812A/pt
Priority to EP90915382A priority patent/EP0498812B1/fr
Priority to DE69017916T priority patent/DE69017916T2/de
Publication of WO1991007468A1 publication Critical patent/WO1991007468A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40—Compounds of aluminium
    • C09C1/42—Clays
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Definitions

  • the present invention relates to a method of improving the ability to filter a clay slurry.
  • Clay materials are earth materials composed mainly of hydrated aluminum silicates.
  • Various types of clay exist such as kaolinite, montmorillonite, attapulgite, bentonite, illite and ball clay.
  • Kaolinite or kaolin clay for example, is a large volume raw material that is used in a number of applications. The largest single use of the material is in the production of glazed paper stocks. The incorporation of the clay into the paper results in a superior product which is used primarily for book and magazine production. A minor application for kaolin is as a raw material in certain ceramic systems. Other minor applications also exist.
  • the filter cake must then be re-suspended in water using polyacrylate dispersants and soda ash to yield a high solids slurry (60 to 70 percent solids), which is then sold. Alternately, the filter cake is dried and air floated to yield a fine dry powder which is also sold.
  • the present invention is a process for increasing the viscosity and the filtration rate of a water and clay slurry, comprising admixing, at a pH greater than about 7.5, an additive selected from (1) a non-flocculating polyalkylene polyamine having an average molecular weight of less than about 1000 and (2) a polyalkylene polyamine having an average molecular weight of less than about 1000 and a latex, with the water and clay slurry, said additives being used in an amount effective to increase the rate of filtration of liquids from the insoluble clay and increase the viscosity of the slurry as compared to a clay slurry containing only water and clay.
  • the filtration method of the present invention can be practiced by introduction of an additive consisting of a polyalkylene polyamine, or a latex and a polyalkylene polyamine, into the water and clay slurry. Introduction of the additive is made after the clay has been removed from the clay seam, but prior to filtering.
  • Polyalkylene polyamines are well-known compounds. For the purposes of the present invention, it is preferred to employ a polyalkylene polyamine having an average molecular weight of less than about 1,000, more preferably less than about 800.
  • Examples of polyalkylene polyamines include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethyleneheptamine, piperazine, aminoethylpiperazine, propylenediamine, butylenediamine, pentamethylenediamine, hexamethylenediamine, diethylenetriamine, dipropylenetriamine, dibutylenetriamine, bis(pentamethylene)tria ine, bis(hexamethylene)triamine, tripropylenetetramine, tris(hexamethylene)tetramine, tetrapropylenepentamine, tetrabutylenepentamine, tetrakis(pentamethylene)pent
  • polyalkylene polyamines examples include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, Ethyleneamine E-100, piperazine and mixtures thereof.
  • the preferred polyalkylene polyamines generally have the formula:
  • n can be from zero to about 6
  • m can be from 1 to about 6
  • p can be from 1 to about 15, with the proviso that n and m can vary independently within a molecule from one repeating unit to the next.
  • n is zero
  • p is 1
  • m is from 3 to 6.
  • preferred polyalkylene polyamines for use in the practice of this invention include ethylene polyamines. It is preferred that the ethylene polyamines used have an average molecular weight less than about 1000. It is more preferred that the ethylene polyamines used have an average molecular weight less than about 800. Higher weight polyalkylene polyamines flocculate the clay suspension. Examples of preferred polyalkylene polyamines include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, piperazine, Ethyleneamine E-100, and mixtures thereof. Examples of more preferred polyalkylene polyamines include Ethyleneamine E-100, tetraethylenepentamine, and triethylenetetramine.
  • the polyalkylene polyamine additive of this invention includes individual polyalkylene polyamines and mixtures thereof.
  • some polyalkylene polyamines such as triethylenetetramine and tetraethylenepentamine (hereinafter TEPA) are generally available commercially only as a mixture of isomers having similar boiling points.
  • TEPA triethylenetetramine and tetraethylenepentamine
  • Ethyleneamine E-100 is a blend of isomers having similar boiling points around 2-40 to 260°C at atmospheric pressure and average molecular weights of 250 to 300.
  • mixtures of isomers having similar boiling points and higher molecular weights up to about 1000.
  • branched and cyclic isomers of these compounds may also be employed.
  • a latex is optionally employed in the process of the present invention in conjunction with the polyalkylene polyamine.
  • preferred latexes include latexes such as styrene-butadiene latexes, acrylic latexes, ethylene-acrylic acid latexes, and other latexes known in the art.
  • styrene-butadiene latex is SB Latex 233A produced by The Dow Chemical Company.
  • the ratio of polyalkylene polyamine to latex, when a latex is used, is any which will result in a slurry composition which exhibits a faster filtration rate compared with a slurry comprised solely of water and clay.
  • a preferred weight ratio of polyalkylene polyamine to latex is at least about 5:95 and no greater than about 95:5. It is more preferred that the weight ratio is at least about 30:70 and no greater than about 70:30. It is most preferred that the weight ratio of polyalkylene polyamine to latex is about 50:50.
  • the polyalkylene polyamine and the latex when used, may be added to the slurry composition separately.
  • the polyalkylene polyamine and latex may be mixed together, optionally with water, and added to the slurry composition at once.
  • it is preferred to mix the two components by preparing an aqueous solution of the polyamine and an aqueous suspension of the latex, and adding the polyamine solution to the latex suspension with stirring.
  • the weight ratio of polyalkylene polyamine and latex to water is preferably about 1:1. However, other ratios may be used.
  • the additive consisting of the polyalkylene polyamine, or the polyalkylene polyamine and a latex, are employed in an amount which is effective to increase the filtration rate of the slurry relative to a slurry which is identical except for the presence of the additive.
  • the additive is added to the slurry in an amount less than that which would irreversibly flocculate the clay slurry.
  • the additive is more preferably added to the slurry in an amount less than that which would flocculate the clay slurry, typically less than one percent by weight of slurry.
  • the additive may be added as a weight percentage between 0.001 and 1 percent. It is more preferred that the additive be added as a weight 5 percentage between 0.05 and 0.15. The most preferred weight percentage of additive is about 0.10 percent.
  • the pH of the slurry in the process of this invention is above about 7.5. While pH of the slurry
  • the pH of at least about 7.5 result from the basicity of the polyalkylene- -._. polyamine additives.
  • a 16-ounce (454 g) polyethylene bottle containing 5 alumina balls is placed on a top-loading balance and tared.
  • a quantity 0 of 50.0 percent additive solution corresponding to the concentrations of additive in the final slurry given in the Examples.
  • kaolin clay slurry is added until the bottle contains a total of 500.0 grams of material (kaolin slurry plus additive solution).
  • the bottle is capped and shaken vigorously by hand until the contents appear uniformly mixed.
  • the bottle is then placed on its side in a mechanical shaker (side to side action) and allowed to shake for 30 minutes at high speed.
  • a Baroid High Pressure Filter Press is used in the testing. This device applies nitrogen pressure to the top of a slurry column, which is resting on a filter disk. Application of the pressure forces the filtrate through the filter, to be collected in a 5 ml graduated cylinder below. The clay powder forms a filter cake on the filter. When temperature and pressure are held constant, the time required for a certain quantity of filtrate to be collected is a good measure of ease of filtration.
  • the cell body is filled with one half of the slurry prepared as above. A filter disk is placed over the 0-ring in the cell body. Then the support screen is placed flush side down over the filter paper. Another 0-ring is placed on the cell cap, and the cell cap fastened to the cell body.
  • the cell body containing the slurry is inverted.
  • the nitrogen pressure is regulated to the desired level, 25 psig (274 kPa), and the line connected to the top of the cell body.
  • Both upper and lower valve stems to the cell body are opened, and a graduated cylinder was placed under the lower, outlet stem.
  • the nitrogen valve is opened and the timer started simultaneously. The time required for 1, 2, 3, 4 and 5 ml of filtrate to be collected is noted.
  • the cell is depressurized and cleaned. The test is repeated to give two replications per slurry. Test conditions and resulting data for the individual runs are given in the Examples.
  • a Baroid filter press is used to generate data for Examples.
  • Slurry A contains a kaolin clay composition having about 40 percent of the clay made up of particles 2 micrometers or less in size.
  • Slurry B contains a kaolin clay composition having about 55 percent of the clay made up of particles 2 micrometers or less in size. Slurry A thus has a larger average particle size than the average particle size in Slurry B.
  • the additives were added to the slurry, followed by efficient mixing.
  • the treated slurry was placed in the Baroid filter press and filtered through membrane filters of known porosity. Both 0.22 micrometers and 0.45 micrometers filters were employed in the Baroid filter press.
  • the volume of filtrate produced as a function of filtration time was taken as a measure of filtration.
  • Example 1-4 Selected filtration rate data for a series of polyalkylene polyamines and other additives is presented in Examples 1-4.
  • the Example tables report the time (in seconds) required to obtain 3 or 5 ml of filtrate under a given set of conditions. Data for both filter sizes are given in the Examples.
  • a control experiment designates a run wherein no additive is mixed in the slurry.
  • Example 1 Time Required to Produce Indicated Volumes of Filtrate When Filtering Clay Slurry B Employing a Baroid High Pressure Filter Press (1000 ppm additive, 25 psi (274 kPa), 0.22 and 0.45 ⁇ m filters, time given in seconds) .
  • Example 2 Time Required to Produce Indicated Volumes of Filtrate When Filtering Clay Slurry A Employing a Baroid High Pressure Filter Press (1000 ppm additive, 25 psi (274 kPa), 0.22 and 0.45 ⁇ m filters, time given in seconds) .
  • Example Tables I and II contain filtration rate results for a series of ethyleneamines, a styrene- -butadiene latex-tetraethylenepentamine (TEPA) blend, and the latex alone. In all cases, filtration rate enhancement was observed. This is true with both clay types an -using either filter size. Reductions in filtration time of up to 58 percent were observed. Ethyleneamine E-100 appeared to possess the greatest ability to facilitate filtration, although the other ethyleneamines and the amine-latex blend showed significant activity.
  • TEPA styrene- -butadiene latex-tetraethylenepentamine
  • Example 3 Time Required to Produce Indicated Volumes of Filtrate When Filtering Clay Slurry B Employing a Baroid High Pressure Filter Press (25 psi (274 kPa), 0.22 and 0.45 ⁇ m filters, time given in seconds).
  • Example 4 Time Required to Produce Indicated Volumes of Filtrate When Filtering Clay Slurry A Employing a Baroid High Pressure Filter Press (25 psi (274 kPa), 0.22 and 0.45 ⁇ m filters, time given in seconds).
  • Example Tables III and IV contain dose sensitivity data for Ethyleneamine E-100 and the latex- -TEPA blend. In general, an additive level of 1000 ppm (based on the total weight of the slurry) was found to be best. However, results obtained with 500 and 1500 ppm were only slightly inferior.
  • the Examples show that the inventive additives increase the rate of filtration on both of the clay slurries. Also, it can be seen that latex enhances the performance of the particular amine used in the Examples. Table I shows that TEPA's filtration rate equals 12.0 seconds using 1000 ppm additive and using a 0.22 ⁇ m filter under the 3 ml column. The same result is obtained when using a 50:50 TEPA-latex blend wherein the total amount of additive is 1000 ppm; therefore, only 500 ppm of TEPA in the presence of latex produces the same effect as the 1000 ppm of TEPA by itself. Yet latex as an additive in itself has little effect on the rate of filtration.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Treatment Of Sludge (AREA)
  • Filtering Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Le débit de filtrage et la viscosité d'un mortier fin d'argile sont améliorés par l'addition d'un polyamine polyalkylène, et, éventuellement, d'un latex. L'additif est particulièrement utile pour l'enrichissement de l'argile.
PCT/US1990/005762 1989-11-08 1990-10-09 Procede d'amelioration de la viscosite et du debit de filtrage d'un mortier fin d'eau et d'argile WO1991007468A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR909007812A BR9007812A (pt) 1989-11-08 1990-10-09 Processo para aumentar a viscosidade e a velocidade de filtracao de uma lama de agua e argila
EP90915382A EP0498812B1 (fr) 1989-11-08 1990-10-09 Procede d'amelioration de la viscosite et du debit de filtrage d'un mortier fin d'eau et d'argile
DE69017916T DE69017916T2 (de) 1989-11-08 1990-10-09 Verfahren zur verbesserung der viskosität und der filtriergeschwindigkeit von tonschlamm.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/433,630 US5057467A (en) 1989-11-08 1989-11-08 Processing additives for clay production
US433,630 1989-11-08

Publications (1)

Publication Number Publication Date
WO1991007468A1 true WO1991007468A1 (fr) 1991-05-30

Family

ID=23720906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/005762 WO1991007468A1 (fr) 1989-11-08 1990-10-09 Procede d'amelioration de la viscosite et du debit de filtrage d'un mortier fin d'eau et d'argile

Country Status (7)

Country Link
US (1) US5057467A (fr)
EP (1) EP0498812B1 (fr)
AT (1) ATE119930T1 (fr)
AU (1) AU6542290A (fr)
BR (1) BR9007812A (fr)
DE (1) DE69017916T2 (fr)
WO (1) WO1991007468A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715396A1 (fr) * 1994-01-21 1995-07-28 Ecc Int Ltd Composition de moulage de céramique.
WO2022229163A1 (fr) 2021-04-27 2022-11-03 Byk-Chemie Gmbh Composition d'épaississant à base de silicate

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE138435T1 (de) * 1991-12-13 1996-06-15 Ecc Int Ltd Papierüberzug
US5300324A (en) * 1992-05-29 1994-04-05 The Dow Chemical Company Process to increase the drying rate of a glaze for ceramics
US5407480A (en) * 1993-09-30 1995-04-18 Vinings Industries, Inc. Stabilized, high solids, low viscosity smectite slurries, and method of preparation
US6312560B1 (en) * 1999-07-23 2001-11-06 Huntsman Ethyleneamines Ltd. Use of alkyleneamines for enhancing lime mud dewatering
US6627084B2 (en) 2001-04-24 2003-09-30 Polymer Ventures, Inc. Organoclay compositions for purifying contaminated liquids and methods for making and using them
CN108026407B (zh) 2015-09-30 2020-09-08 陶氏环球技术有限责任公司 贮存稳定的水性组合物和其制得方法
US11448052B2 (en) 2020-06-17 2022-09-20 Saudi Arabian Oil Company Cement and anti-corrosion fluid for casing isolation
US11453816B2 (en) 2020-07-06 2022-09-27 Saudi Arabian Oil Company Accelerated cement compositions and methods for treating lost circulation zones
US11939520B2 (en) 2020-08-12 2024-03-26 Saudi Arabian Oil Company Methods and cement compositions for reducing corrosion of wellbore casings
US11485894B2 (en) 2020-08-17 2022-11-01 Saudi Arabian Oil Company Accelerated cement compositions and methods for top-job cementing of a wellbore to reduce corrosion
US11608467B2 (en) 2021-02-16 2023-03-21 Saudi Arabian Oil Company Hydraulic fracturing fluids with an aqueous base fluid and clay stabilizer and methods for hydraulic fracturing using the same
US11566157B2 (en) 2021-02-16 2023-01-31 Saudi Arabian Oil Company Water-based drilling fluid compositions and methods for drilling subterranean wells
US11492536B2 (en) 2021-02-16 2022-11-08 Saudi Arabian Oil Company Cement slurries and methods for cementing a casing in a wellbore
US11535787B2 (en) 2021-05-12 2022-12-27 Saudi Arabian Oil Company Spacer fluids and methods for cementing a casing in a wellbore
US12024669B2 (en) 2022-06-27 2024-07-02 Saudi Arabian Oil Company C-36 dimer diamine hydrochloride salt as primary viscosifier for invert-emulsion drilling fluids
US11807803B1 (en) 2022-08-02 2023-11-07 Saudi Arabian Oil Company Cement spacer fluid with polyethyleneimine hydrochloride salt as a shale inhibitor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451655A1 (de) * 1973-11-02 1975-05-07 English Clays Lovering Pochin Verfahren zur verbesserung der rheologischen eigenschaften einer waesserigen suspension eines tonminerals
EP0227443A2 (fr) * 1985-12-19 1987-07-01 Ecc International Limited Traitement de minerais d'argile

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US2768089A (en) * 1952-10-13 1956-10-23 Gen Mills Inc Clay soil improved by an alkylene polyamine
GB1498086A (en) * 1975-06-30 1978-01-18 Yara Engineering Corp High bulking clay pigments and methods of making same
US4227920A (en) * 1978-07-18 1980-10-14 Yara Engineering Corporation Methods of clay benefication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451655A1 (de) * 1973-11-02 1975-05-07 English Clays Lovering Pochin Verfahren zur verbesserung der rheologischen eigenschaften einer waesserigen suspension eines tonminerals
EP0227443A2 (fr) * 1985-12-19 1987-07-01 Ecc International Limited Traitement de minerais d'argile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715396A1 (fr) * 1994-01-21 1995-07-28 Ecc Int Ltd Composition de moulage de céramique.
WO2022229163A1 (fr) 2021-04-27 2022-11-03 Byk-Chemie Gmbh Composition d'épaississant à base de silicate

Also Published As

Publication number Publication date
DE69017916D1 (de) 1995-04-27
US5057467A (en) 1991-10-15
EP0498812A1 (fr) 1992-08-19
AU6542290A (en) 1991-06-13
BR9007812A (pt) 1992-09-01
ATE119930T1 (de) 1995-04-15
EP0498812B1 (fr) 1995-03-15
DE69017916T2 (de) 1995-07-06

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